Bitcoin - The Most Optimistic Thing About Bitcoin for the Next Five Years?

I want to know, because the book makes me optimistic. What do you think is the most optimistic thing about Bitcoin for the next five years? I'm very fascinated to see that play out if banks, especially in the US, not so much in Canada, at least not yet. If it's that, as Raoul Powell said, if it becomes that pristine asset that when all else fails, that's the thing you want to have.